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Development Of A Low Profile Bridge Rail For Test Level 2 Applications
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Book Synopsis Development of a Low-profile Bridge Rail for Test Level 2 Applications by :
Download or read book Development of a Low-profile Bridge Rail for Test Level 2 Applications written by and published by . This book was released on 2002 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: A low-profile bridge rail was developed for installations where pedestrians and/or site restrictions prevent the use of conventional bridge rails with transitions. The bridge rail design was constructed using a 22.86-m long reinforced concrete parapet.
Book Synopsis Adapation of Concrete and Timber Bridge Railings for Low-volume Traffic by : Russell W. Masterson
Download or read book Adapation of Concrete and Timber Bridge Railings for Low-volume Traffic written by Russell W. Masterson and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge railings are a safety feature to protect the traveling public by containing and redirecting errant vehicles during run-off-road (ROR) events. Most bridge railing design and evaluation efforts have focused on ROR crashes on high-volume roads. Bridge railings for low-volume roads can be designed for lower impact speeds, so railings designed for high-volume roads are unnecessarily robust for low-volume applications and can be optimized to reduce costs for bridge owners while still providing adequate safety. The aim of this research has been focused on improving the design of two low-volume bridge railing systems for use by the United States Department of Agriculture, Forest Service, Missoula Technology and Development (USDA-FS-MTDD) The first modified barrier system was originally a low-height reinforced concrete barrier designed for National Cooperative Highway Research Program Report No. 350, Test Level 2 standards (NCHRP 350 TL-2). In this research, the barrier was redesigned and optimized to meet Manual for Assessing Safety Hardware (MASH) TL-1 requirements by reducing railing dimensions and reinforcement. Additionally, construction guidance was developed for installation on concrete bridge decks of various thicknesses and overhang widths. AASHTO LRFD Bridge Design Specifications were utilized to evaluate crashworthiness and structural adequacy of the modified barrier design and the deck’s structural adequacy for lateral impact loads, vertical loads of vehicles leaning on the top of the barrier during impact events, and design traffic loads traveling adjacent to the barrier in routine service. The second bridge deck and rail system featured a transverse nail-laminated deck with a low-height timber bridge rail mounted at the edge of the deck. The original deck with railing was crashworthy, but the deck was associated with higher labor costs and more susceptible to deterioration. Further, the agency desired it be used on transverse glulam timber decks. Thus, a study was begun to adapt the railing system for use on transverse glulam decks, which would also increase the durability and likely lower the onsite construction time and labor cost of the deck system. Component tests were performed on the original and modified deck systems to confirm the acceptable performance of the modified system. From the component testing results, the glulam rail and scupper blocks installed on a transverse glulam deck resisted more lateral force, absorbed more energy, and had higher initial linear stiffness as compared to the same rail and scupper blocks installed on a transverse nail-laminated deck. Thus, the low-height, glulam timber bridge railing installed on a transverse, glulam deck will provide equal or greater safety performance as compared to the same bridge rail installed on a transverse, nail-laminated deck. As a result, the low-height, glulam timber bridge rail installed on a transverse glulam deck has also been deemed adequate for use in MASH TL-1 applications.
Download or read book What's Up Doc? written by and published by . This book was released on 2002 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a MASH Test Level 4 Open Concrete Bridge Rail by : Jacob A. DeLone
Download or read book Development of a MASH Test Level 4 Open Concrete Bridge Rail written by Jacob A. DeLone and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials. Task Force for Roadside Safety Publisher : ISBN 13 : Total Pages :560 pages Book Rating :4.0/5 ( download)
Book Synopsis Roadside Design Guide by : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Testing of a Bridge Rail for Low-volume Roads by : Scott K. Rosenbaugh
Download or read book Development and Testing of a Bridge Rail for Low-volume Roads written by Scott K. Rosenbaugh and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Interactive Graphics by : National Research Council (U.S.). Transportation Research Board
Download or read book Applications of Interactive Graphics written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1979 with total page 1120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Testing of new bridge rail and transition designs: Appendix L: 32-in (813-mm) thrie-beam transition by : Eugene Buth
Download or read book Testing of new bridge rail and transition designs: Appendix L: 32-in (813-mm) thrie-beam transition written by Eugene Buth and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to develop safer bridge rail and transition designs and to improve design guidelines. Ten bridge railings and two transitions were designed, tested, and evaluated in accordance with American Association of State Highway and Transportation Officials (AASHTO) requirements. The railings were designed using ultimate strength procedures and collision forces from earlier research. Design procedures, railing designs, and test results are presented. All designs demonstrated acceptable collision performance.
Book Synopsis Development and Testing of a Low-maintenance, Energy-absorbing Bridge Rail by : John Craig Cain
Download or read book Development and Testing of a Low-maintenance, Energy-absorbing Bridge Rail written by John Craig Cain and published by . This book was released on 1985 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Prioritization of Research on Bridge Railings for Use on Timber Deck Bridges and Development of Two Glulam Bridge Railing Systems by : Jared T. Duren
Download or read book Prioritization of Research on Bridge Railings for Use on Timber Deck Bridges and Development of Two Glulam Bridge Railing Systems written by Jared T. Duren and published by . This book was released on 2021 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past, many timber bridge railings, bridge railings for use on timber deck bridges, and approach guardrail transition systems to accompany these railings, have been developed to meet different impact safety criteria. Through an extensive literature review, the design details of these systems were identified and organized. A survey was then developed and distributed to multiple government agencies and timber industry members to identify their desire for these bridge railing and approach guardrail transition systems to be developed to meet current American Association of State Highway and Transportation Officials (AASHTO) Manual for Assessing Safety Hardware (MASH) impact safety criteria. The data provided from the survey was analyzed, and a list of 15 bridge railing systems was created, which included accompanying approach guardrail transitions. This list prioritized the bridge railing systems based upon the number of survey respondents requesting such a bridge railing system. Cost estimates for the research and development of each bridge railing system were also provided in order to proceed into subsequent phases of this research project. The development of a MASH TL-4 glued-laminated (glulam) timber rail with curb bridge railing system was initiated in Phase II. Many similar systems have been developed in the past to meet previous impact safety criteria, but an updated design was necessary to meet current MASH impact safety criteria. Through impact simulations with the computer software program BARRIER VII, a model was created and calibrated to previous crash testing results. After a series of modifications to the bridge railing system represented in the model, including increasing the size and height of multiple components, the simulation effort demonstrated that the modified TL-4 bridge railing was acceptable under the MASH criteria. Additional research on connection details and timber deck strengths, the development of an approach guardrail transition system, and component and full-scale testing programs are yet to be performed in the completion of the Phase II project. An additional project was advanced and involved the adaptation of a previouslydeveloped, MASH TL-1 crashworthy, low-height, curb-type, glulam bridge railing system for transverse, nail-laminated decks to be capable of use on transverse, glulam timber decks, which is part of a Phase III effort. Analysis of the system components and timber deck types led to the creation of a static and dynamic component testing program utilizing two surrogate bridge decks. To date, the test plans and details have been developed, with the construction and testing programs yet to be performed. In the future, results from the component testing program will be utilized to demonstrate that the bridge railing system contains adequate height and strength when used on transverse, glulam timber decks.
Download or read book Transportation Research Record written by and published by . This book was released on 1995 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bridge Engineering written by and published by . This book was released on 1978 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Research Abstracts written by and published by . This book was released on 1993 with total page 870 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1993 with total page 1094 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of Highway Practice by : National Cooperative Highway Research Program
Download or read book Synthesis of Highway Practice written by National Cooperative Highway Research Program and published by . This book was released on 1997 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Association of State Highway and Transportation Officials Publisher :AASHTO ISBN 13 :1560514698 Total Pages :38 pages Book Rating :4.5/5 (65 download)
Book Synopsis LRFD Guide Specifications for the Design of Pedestrian Bridges by : American Association of State Highway and Transportation Officials
Download or read book LRFD Guide Specifications for the Design of Pedestrian Bridges written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2009 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rural and Urban Roads written by and published by . This book was released on 1978 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt:
